The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 40 |
| 7 | 35317 |
| 8 | 56150820 |
| 9 | 111359017198 |
| 10 | 278086517599356 |
| 11 | 877760741062694898 |
| 12 | 3482578978170418753715 |
| 13 | 17204168691253789080138981 |
| 14 | 104690934973509839187285618311 |
| 15 | 776311587313178356520412354767734 |
| 16 | 6942595716239018207126337605515965388 |
[0,0,0,0,1,40,35317,56150820,111359017198, 278086517599356,877760741062694898, 3482578978170418753715,17204168691253789080138981, 104690934973509839187285618311, 776311587313178356520412354767734, 6942595716239018207126337605515965388] |